CN109307074B - Sealing structure and high-pressure connector using same - Google Patents
Sealing structure and high-pressure connector using same Download PDFInfo
- Publication number
- CN109307074B CN109307074B CN201710619813.2A CN201710619813A CN109307074B CN 109307074 B CN109307074 B CN 109307074B CN 201710619813 A CN201710619813 A CN 201710619813A CN 109307074 B CN109307074 B CN 109307074B
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- Prior art keywords
- sealing
- inner step
- circumferential gap
- shell
- sealing element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to a sealing structure and a high-pressure connector using the same; a sealing arrangement comprises a first sealing surface, a second sealing surface and a sealing element for forming a seal between the first and second sealing surfaces, the first and/or second sealing surfaces being provided with a circumferential gap, the sealing element being arranged to be pressed against the circumferential gap, and respective parts of the first and second sealing surfaces adjacent to the circumferential gap being covered by the sealing element. When the sealing device is used, the sealing element is arranged on the circumferential gap, and the corresponding parts of the first sealing surface and the second sealing surface, which are close to the circumferential gap, are covered by the sealing element; after the sealing element is pressed and deformed, the sealing element and the first sealing surface and the second sealing surface form sealing on the inner side and the outer side of the circumferential gap; compared with the prior art, the sealing structure has the advantages of few used sealing elements, high assembly efficiency and more reliable sealing.
Description
Technical Field
The invention relates to a sealing structure and a high-pressure connector using the same.
Background
As more and more high-voltage connectors are applied to the electric automobile industry, higher requirements are also put on the sealing performance of the connectors. The connector shown in fig. 1 in the conventional connector includes a housing 1 and a plug body 3 installed in the housing 1, wherein the plug body 3 is seated on an inner step on the housing 1, and a circumferential gap surrounding the plug body 3 is formed between the plug body 3 and the inner step; the pressing plate 2 is pressed on the top of the plug-in body 3; the sealing ring 7 is used for forming sealing between the shell 1 and the plug body 3; the pressing plate 2 applies pressure to the sealing gasket 4, and after the sealing gasket 4 is pressed and deformed, sealing is formed between the pressing plate 2 and the plug body 3; the sealing ring 7 and the sealing gasket 4 are respectively arranged inside and outside the annular bulge at the bottom of the pressure plate 2.
Although the connector adopting the sealing structure can play a sealing effect to a certain extent; however, because multiple seals are used, a seal failure between any seal and a corresponding component can affect the overall sealing performance of the connector; therefore, the sealing structure on the existing connector is unreliable and has potential safety hazard.
Disclosure of Invention
The invention aims to provide a sealing structure, which is used for solving the problems of poor sealing effect and potential safety hazard of the sealing structure on the existing high-voltage connector; the invention also aims to provide a high-pressure connector using the sealing structure.
In order to achieve the purpose, the technical scheme of the sealing structure is as follows: a sealing arrangement comprises a first sealing surface, a second sealing surface and a sealing element for forming a seal between the first and second sealing surfaces, the first and/or second sealing surfaces being provided with a circumferential gap, the sealing element being arranged to be pressed against the circumferential gap, and respective parts of the first and second sealing surfaces adjacent to the circumferential gap being covered by the sealing element.
The first sealing surface and/or the second sealing surface with the circumferential gap are of a planar structure.
And a sinking groove for sinking and installing the sealing element is formed in the periphery of the circumferential gap on the first sealing surface and/or the second sealing surface.
The sealing element is a sealing gasket, the upper surface and the lower surface of the sealing gasket are respectively used for being in press fit with the first sealing surface and the second sealing surface, and a protruding structure used for being in press fit with the corresponding sealing surface is arranged on the upper surface and/or the lower surface of the sealing gasket.
Protruding structures are arranged on the upper surface and the lower surface of the sealing gasket, and the protruding structures on the upper surface and the lower surface are arranged in an up-and-down symmetrical mode.
The protruding structure is formed by two arc-shaped protrusions which are arranged adjacently, and a V-shaped gap is formed at the joint of the two arc-shaped protrusions.
The technical scheme of the high-voltage connector is as follows: the high-voltage connector comprises a shell, an inserting body inserted in the shell and a pressing plate used for pressing the inserting body tightly, wherein an inner step used for stopping the inserting body is arranged on the shell, and a circumferential gap surrounding the inserting body is formed between the inner step and the inserting body; the high-pressure connector further comprises a sealing element for sealing the circumferential gap, the sealing element is pressed on the circumferential gap, and the corresponding parts, close to the circumferential gap, of the shell, the pressing plate and the plug-in body are covered by the sealing element.
The bottom surface of the pressure plate is of a plane structure, and the thickness of the part, used for being matched with the stop of the inner step on the shell, of the plug-in body is consistent with the depth of the inner step.
And a sinking groove for sinking and installing the sealing element is arranged on the periphery of the inner step on the step wall of the inner step for enclosing the plug body into the circumferential gap.
The sealing element is a sealing gasket, the upper surface and the lower surface of the sealing gasket are respectively used for being in press fit with the first sealing surface and the second sealing surface, and a protruding structure used for being in press fit with the corresponding sealing surface is arranged on the upper surface and/or the lower surface of the sealing gasket.
Protruding structures are arranged on the upper surface and the lower surface of the sealing gasket, and the protruding structures on the upper surface and the lower surface are arranged in an up-and-down symmetrical mode.
The protruding structure is formed by two arc-shaped protrusions which are arranged adjacently, and a V-shaped gap is formed at the joint of the two arc-shaped protrusions.
The invention has the beneficial effects that: when the sealing device is used, the sealing element is arranged on the circumferential gap, and the corresponding parts of the first sealing surface and the second sealing surface, which are close to the circumferential gap, are covered by the sealing element; after the sealing element is pressed and deformed, the sealing element and the first sealing surface and the second sealing surface form sealing on the inner side and the outer side of the circumferential gap; compared with the prior art, the sealing structure has the advantages of few used sealing elements, high assembly efficiency and more reliable sealing.
Furthermore, a sinking groove for sinking and installing a sealing element is formed in the periphery of the circumferential gap on the first sealing surface and/or the second sealing surface; the outer diameter of the sealing element is matched with the inner diameter of the sinking groove, the sealing element is installed in the sinking groove, and the sinking groove carries out radial stopping and limiting on the sealing element to prevent the position of the sealing element from deviating.
Furthermore, the sealing element is a sealing gasket, and a convex structure is arranged on the upper surface and/or the lower surface of the sealing gasket; when the sealing gasket is pressed, under the action of the same pressure, the pressing force between the convex structure and the corresponding sealing surface is larger, and the sealing effect is better.
Further, the convex structure is formed by two arc-shaped protrusions which are arranged closely; when the sealing device is used, the V-shaped gap corresponds to the circumferential gap, the two arc-shaped protrusions are respectively used for being in compression fit with the corresponding sealing surfaces on the inner side and the outer side of the circumferential gap, and the sealing effect is better.
Drawings
FIG. 1 is a schematic view of a prior art connector with a sealing structure;
fig. 2 is a schematic structural view of embodiment 1 of the high-voltage connector of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a schematic structural view of embodiment 2 of the high-voltage connector of the present invention;
fig. 5 is a schematic structural view of a gasket in embodiment 3 of the high-pressure connector of the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The plug-in body 3 is provided with an outer ring platform 31, the outer ring platform 31 is lapped on the middle inner step 12, the bottom surface of the outer ring platform 31 is matched with the bottom wall of the step of the middle inner step 12 in a downward stopping way, and the top surface of the outer ring platform 31 is flush with the bottom wall of the step of the upper inner step 11; a circumferential gap 14 surrounding the insert body 3 is formed between the circumferential wall of the outer annular land 31 and the step side wall of the intermediate inner step 12.
The upper sleeve body 5 is pressed on the outer annular table 31, and the bottom of the upper sleeve body 5 is provided with an outward turning edge 51 turned towards the outer side of the upper sleeve body 5; the bottom surface of the outward turning edge 51 is butted with the top surface of the outer ring platform 31, and the top surface of the outward turning edge 51 is aligned with the top surface of the shell 1; a space for the gasket 3 to be embedded is left between the outer peripheral wall of the upturned edge 51 and the step side wall of the first inner step 11.
The sealing gasket 4 is arranged in an annular sealing groove which is surrounded by the first inner step 11, the outer annular table 31 and the outward turning edge 51, and the section of the annular sealing groove is rectangular; the cross section of the sealing gasket 4 corresponds to the cross section of the annular sealing groove. The gasket 4 is pressed against the circumferential gap 14; the portion of the top of the outer annular land 31 near the circumferential slit 14 and the portion of the bottom wall of the first inner step 11 near the circumferential slit 14 are covered with the seal gasket 4.
The pressing plate 2 is sleeved on the upper sleeve body 5, the sealing gasket 4 is pressed downwards by the pressing plate 2, the sealing gasket 4 deforms after being pressed, and sealing is respectively formed between the sealing gasket 4 and the bottom wall of the step of the upper inner step 11 and between the sealing gasket 4 and the top surface of the outer annular table 31; i.e. both the inner and the outer side of the circumferential slit 14 are sealed. Compared with the prior art, better sealing is realized by fewer sealing elements, the assembling efficiency of the connector is higher, and the connector is safer to use.
In other embodiments of embodiment 1, the top of the outer annular table on the plug body may also exceed the step side wall of the first step, and the sealing gasket may be sealed between the pressing plate and the plug body and between the pressing plate and the housing by bending the sealing gasket.
In other embodiments of embodiment 3, the trapezoidal protrusions may be triangular protrusions having a triangular cross section.
In the embodiment of the sealing structure of the present invention, the sealing structure in the embodiment is the same as that in any embodiment of the high-pressure connector of the present invention, and therefore, the description is omitted; in addition, the sealing structure of the present embodiment may be used in other technical fields than connectors.
Claims (5)
1. The high-voltage connector comprises a shell, an inserting body inserted in the shell and a pressing plate used for pressing the inserting body tightly, wherein an inner step used for stopping the inserting body is arranged on the shell, and a circumferential gap surrounding the inserting body is formed between the inner step and the inserting body; the high-pressure connector further comprises a sealing element for sealing the circumferential gap, and is characterized in that: the sealing element is pressed on the circumferential gap, the corresponding parts of the shell, the pressing plate and the plug-in body, which are close to the circumferential gap, are covered by the sealing element, the sealing element is a sealing gasket, the high-voltage connector further comprises an upper sleeve body, the inner steps are continuously arranged at the top of the shell, each inner step is an upper inner step, a middle inner step and a lower inner step, the plug-in body is provided with an outer annular platform, the outer annular platform is lapped on the middle inner step, the circumferential gap is formed by a circumferential wall of the outer annular platform and a step side wall of the middle inner step, the upper sleeve body is pressed on the outer annular platform, the bottom of the upper sleeve body is provided with an outward turning edge turned over towards the outer side of the upper sleeve body, the bottom surface of the outward turning edge is butted with the top surface of the outer annular platform, a gap for the sealing gasket to be embedded is reserved between the outer circumferential wall of the outward turning edge and the step side wall of the upper inner step, and the sealing gasket is, the part of the top of the outer ring table, which is close to the circumferential gap, and the part of the bottom wall of the upper inner step, which is close to the circumferential gap, are covered by sealing gaskets, the pressing plate is sleeved on the upper sleeve body, and the sealing gaskets are pressed downwards by the pressing plate.
2. The high voltage connector of claim 1, wherein: the bottom surface of the pressure plate is of a plane structure, and the thickness of the part, used for being matched with the stop of the inner step on the shell, of the plug-in body is consistent with the depth of the inner step.
3. The high voltage connector of claim 1, wherein: and the upper surface and/or the lower surface of the sealing gasket is/are provided with a convex structure.
4. The high voltage connector of claim 1, wherein: protruding structures are arranged on the upper surface and the lower surface of the sealing gasket, and the protruding structures on the upper surface and the lower surface are arranged in an up-and-down symmetrical mode.
5. The high voltage connector of claim 3, wherein: the protruding structure is formed by two arc-shaped protrusions which are arranged adjacently, and a V-shaped gap is formed at the joint of the two arc-shaped protrusions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710619813.2A CN109307074B (en) | 2017-07-26 | 2017-07-26 | Sealing structure and high-pressure connector using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710619813.2A CN109307074B (en) | 2017-07-26 | 2017-07-26 | Sealing structure and high-pressure connector using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307074A CN109307074A (en) | 2019-02-05 |
| CN109307074B true CN109307074B (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710619813.2A Active CN109307074B (en) | 2017-07-26 | 2017-07-26 | Sealing structure and high-pressure connector using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307074B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821297Y (en) * | 2005-09-20 | 2006-09-27 | 上海泓阳机械有限公司 | Axial longhole seal device on roller periphery |
| CN101876375A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Sealing device |
| CN103016738A (en) * | 2011-09-20 | 2013-04-03 | 本田技研工业株式会社 | Sealing structure |
| JP2014127429A (en) * | 2012-12-27 | 2014-07-07 | Sumitomo Wiring Syst Ltd | Relay connector for automatic transmission |
| CN103982656A (en) * | 2014-05-16 | 2014-08-13 | 江苏宇海环保设备有限公司 | Sealing ring and valve assembly using sealing ring |
| CN105186238A (en) * | 2014-05-28 | 2015-12-23 | Smk株式会社 | Airtight Coaxial Connector |
| CN106763768A (en) * | 2016-11-18 | 2017-05-31 | 江苏智石科技有限公司 | A kind of pressure container seal structure |
-
2017
- 2017-07-26 CN CN201710619813.2A patent/CN109307074B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821297Y (en) * | 2005-09-20 | 2006-09-27 | 上海泓阳机械有限公司 | Axial longhole seal device on roller periphery |
| CN101876375A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Sealing device |
| CN103016738A (en) * | 2011-09-20 | 2013-04-03 | 本田技研工业株式会社 | Sealing structure |
| JP2014127429A (en) * | 2012-12-27 | 2014-07-07 | Sumitomo Wiring Syst Ltd | Relay connector for automatic transmission |
| CN103982656A (en) * | 2014-05-16 | 2014-08-13 | 江苏宇海环保设备有限公司 | Sealing ring and valve assembly using sealing ring |
| CN105186238A (en) * | 2014-05-28 | 2015-12-23 | Smk株式会社 | Airtight Coaxial Connector |
| CN106763768A (en) * | 2016-11-18 | 2017-05-31 | 江苏智石科技有限公司 | A kind of pressure container seal structure |
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| Publication number | Publication date |
|---|---|
| CN109307074A (en) | 2019-02-05 |
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